diff options
Diffstat (limited to 'src/main/java/eu/siacs/conversations/xmpp/jid/Jid.java')
-rw-r--r-- | src/main/java/eu/siacs/conversations/xmpp/jid/Jid.java | 219 |
1 files changed, 0 insertions, 219 deletions
diff --git a/src/main/java/eu/siacs/conversations/xmpp/jid/Jid.java b/src/main/java/eu/siacs/conversations/xmpp/jid/Jid.java deleted file mode 100644 index 295e067a..00000000 --- a/src/main/java/eu/siacs/conversations/xmpp/jid/Jid.java +++ /dev/null @@ -1,219 +0,0 @@ -package eu.siacs.conversations.xmpp.jid; - -import android.util.LruCache; - -import net.java.otr4j.session.SessionID; - -import java.net.IDN; - -import eu.siacs.conversations.Config; -import gnu.inet.encoding.Stringprep; -import gnu.inet.encoding.StringprepException; - -/** - * The `Jid' class provides an immutable representation of a JID. - */ -public final class Jid { - - private static LruCache<String,Jid> cache = new LruCache<>(1024); - - private final String localpart; - private final String domainpart; - private final String resourcepart; - - // It's much more efficient to store the ful JID as well as the parts instead of figuring them - // all out every time (since some characters are displayed but aren't used for comparisons). - private final String displayjid; - - public String getLocalpart() { - return localpart; - } - - public String getDomainpart() { - return IDN.toUnicode(domainpart); - } - - public String getResourcepart() { - return resourcepart; - } - - public static Jid fromSessionID(final SessionID id) throws InvalidJidException{ - if (id.getUserID().isEmpty()) { - return Jid.fromString(id.getAccountID()); - } else { - return Jid.fromString(id.getAccountID()+"/"+id.getUserID()); - } - } - - public static Jid fromString(final String jid) throws InvalidJidException { - return Jid.fromString(jid, false); - } - - public static Jid fromString(final String jid, final boolean safe) throws InvalidJidException { - return new Jid(jid, safe); - } - - public static Jid fromParts(final String localpart, - final String domainpart, - final String resourcepart) throws InvalidJidException { - String out; - if (localpart == null || localpart.isEmpty()) { - out = domainpart; - } else { - out = localpart + "@" + domainpart; - } - if (resourcepart != null && !resourcepart.isEmpty()) { - out = out + "/" + resourcepart; - } - return new Jid(out, false); - } - - private Jid(final String jid, final boolean safe) throws InvalidJidException { - if (jid == null) throw new InvalidJidException(InvalidJidException.IS_NULL); - - Jid fromCache = Jid.cache.get(jid); - if (fromCache != null) { - displayjid = fromCache.displayjid; - localpart = fromCache.localpart; - domainpart = fromCache.domainpart; - resourcepart = fromCache.resourcepart; - return; - } - - // Hackish Android way to count the number of chars in a string... should work everywhere. - final int atCount = jid.length() - jid.replace("@", "").length(); - final int slashCount = jid.length() - jid.replace("/", "").length(); - - // Throw an error if there's anything obvious wrong with the JID... - if (jid.isEmpty() || jid.length() > 3071) { - throw new InvalidJidException(InvalidJidException.INVALID_LENGTH); - } - - // Go ahead and check if the localpart or resourcepart is empty. - if (jid.startsWith("@") || (jid.endsWith("@") && slashCount == 0) || jid.startsWith("/") || (jid.endsWith("/") && slashCount < 2)) { - throw new InvalidJidException(InvalidJidException.INVALID_CHARACTER); - } - - String finaljid; - - final int domainpartStart; - final int atLoc = jid.indexOf("@"); - final int slashLoc = jid.indexOf("/"); - // If there is no "@" in the JID (eg. "example.net" or "example.net/resource") - // or there are one or more "@" signs but they're all in the resourcepart (eg. "example.net/@/rp@"): - if (atCount == 0 || (atCount > 0 && slashLoc != -1 && atLoc > slashLoc)) { - localpart = ""; - finaljid = ""; - domainpartStart = 0; - } else { - final String lp = jid.substring(0, atLoc); - try { - localpart = Config.DISABLE_STRING_PREP || safe ? lp : Stringprep.nodeprep(lp); - } catch (final StringprepException e) { - throw new InvalidJidException(InvalidJidException.STRINGPREP_FAIL, e); - } - if (localpart.isEmpty() || localpart.length() > 1023) { - throw new InvalidJidException(InvalidJidException.INVALID_PART_LENGTH); - } - domainpartStart = atLoc + 1; - finaljid = lp + "@"; - } - - final String dp; - if (slashCount > 0) { - final String rp = jid.substring(slashLoc + 1, jid.length()); - try { - resourcepart = Config.DISABLE_STRING_PREP || safe ? rp : Stringprep.resourceprep(rp); - } catch (final StringprepException e) { - throw new InvalidJidException(InvalidJidException.STRINGPREP_FAIL, e); - } - if (resourcepart.isEmpty() || resourcepart.length() > 1023) { - throw new InvalidJidException(InvalidJidException.INVALID_PART_LENGTH); - } - dp = IDN.toUnicode(jid.substring(domainpartStart, slashLoc), IDN.USE_STD3_ASCII_RULES); - finaljid = finaljid + dp + "/" + rp; - } else { - resourcepart = ""; - dp = IDN.toUnicode(jid.substring(domainpartStart, jid.length()), - IDN.USE_STD3_ASCII_RULES); - finaljid = finaljid + dp; - } - - // Remove trailing "." before storing the domain part. - if (dp.endsWith(".")) { - try { - domainpart = IDN.toASCII(dp.substring(0, dp.length() - 1), IDN.USE_STD3_ASCII_RULES); - } catch (final IllegalArgumentException e) { - throw new InvalidJidException(e); - } - } else { - try { - domainpart = IDN.toASCII(dp, IDN.USE_STD3_ASCII_RULES); - } catch (final IllegalArgumentException e) { - throw new InvalidJidException(e); - } - } - - // TODO: Find a proper domain validation library; validate individual parts, separators, etc. - if (domainpart.isEmpty() || domainpart.length() > 1023) { - throw new InvalidJidException(InvalidJidException.INVALID_PART_LENGTH); - } - - Jid.cache.put(jid, this); - - this.displayjid = finaljid; - } - - public Jid toBareJid() { - try { - return resourcepart.isEmpty() ? this : fromParts(localpart, domainpart, ""); - } catch (final InvalidJidException e) { - // This should never happen. - return null; - } - } - - public Jid toDomainJid() { - try { - return resourcepart.isEmpty() && localpart.isEmpty() ? this : fromString(getDomainpart()); - } catch (final InvalidJidException e) { - // This should never happen. - return null; - } - } - - @Override - public String toString() { - return displayjid; - } - - @Override - public boolean equals(final Object o) { - if (this == o) return true; - if (o == null || getClass() != o.getClass()) return false; - - final Jid jid = (Jid) o; - - return jid.hashCode() == this.hashCode(); - } - - @Override - public int hashCode() { - int result = localpart.hashCode(); - result = 31 * result + domainpart.hashCode(); - result = 31 * result + resourcepart.hashCode(); - return result; - } - - public boolean hasLocalpart() { - return !localpart.isEmpty(); - } - - public boolean isBareJid() { - return this.resourcepart.isEmpty(); - } - - public boolean isDomainJid() { - return !this.hasLocalpart(); - } -} |